999348219 has 8 divisors (see below), whose sum is σ = 1480515920. Its totient is φ = 666232128.

The previous prime is 999348151. The next prime is 999348257. The reversal of 999348219 is 912843999.

It is not a de Polignac number, because 999348219 - 2¹¹ = 999346171 is a prime.

It is a super-2 number, since 2×999348219² = 1997393725636943922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999348269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18506422 + ... + 18506475.

It is an arithmetic number, because the mean of its divisors is an integer number (185064490).

Almost surely, 2^999348219 is an apocalyptic number.

999348219 is a deficient number, since it is larger than the sum of its proper divisors (481167701).

999348219 is a wasteful number, since it uses less digits than its factorization.

999348219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37012906 (or 37012900 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 999348219 is about 31612.4693594158. The cubic root of 999348219 is about 999.7826924475.

The spelling of 999348219 in words is "nine hundred ninety-nine million, three hundred forty-eight thousand, two hundred nineteen".